bypass intermediate buffer in SigHash
bypass intermediate buffer in SigHash

NebulousLabs/Sia,ChrisSchinnerl/Sia,ericflo/Sia,ericflo/Sia,mtlynch/Sia,ChrisSchinnerl/Sia,MrStrong/Sia,mtlynch/Sia,NebulousLabs/Sia,mharkus/Sia,mharkus/Sia,MrStrong/Sia